出典:Wikipedia
出典:『Wikipedia』 (2011/07/04 20:36 UTC 版)
Operation Mandrel was a series of 53 nuclear test explosions conducted in 1969 and 1970. This test series included a 1.2 megaton "calibration shot" code-named Milrow, which was detonated 1,220 metres (4,000 ft) underground at Amchitka Island, Alaska, and the 40 kiloton gas stimulation experiment code-named Rulison, detonated near Grand Valley, Colorado